Color

#a11bc5

#a11bc5
hex#a11bc5
rgbrgb(161, 27, 197)
hslhsl(287, 76%, 44%)
oklchoklch(0.531 0.243 317.2)
Closest name: Nebula (#a104c3)Relative luminance 0.1239

Colors that go with #a11bc5

Forest Green, Sea Green and Charcoal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#40c51b

#4b1bc5 · #c51b95

#c5a11b · #1bc5a1

Split-complementary

Open in tool →

#95c51b · #1bc54b

#c54b1b · #40c51b · #1b95c5

Contrast

#a11bc5 as textRatioAAAA largeAAAFix
Aaon white
6.04:1passpassfail
  • AAA: use #8e18af as the text (7.24:1)
Aaon black
3.48:1failpassfail
  • AA: use #bb2ce2 as the text (4.57:1)
  • AAA: use #d16feb as the text (7.18:1)
  • AA: or shift the background to #e0e0e0 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a11bc5 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#a11bc5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a11bc5
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #a11bc5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a11bc5-bd9fc1-abcb62-2d1f2a-ece9f1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md